COVID-19 VaccineCOVID-19 VaccineEffectiveness Analyzedhospital admissions compared to Sanofi.Results show Pfizer vaccine lowersPrimary Care ResearchCOVID-19 Vaccine Comparison: Pfizer vs. SanofiStudy examines safety and effectiveness of Pfizer and Sanofi COVID-19 vaccines.2025-08-21T04:17:30+00:00 ― 6 min read